Avengers: Infinity War - 10 MCU Heroes Strong Enough To Face Thanos
4. Scarlet Witch
Scarlet Witch is the only Avenger who's capable of getting inside Thanos' head, causing him to hallucinate and lose concentration.
In Avengers: Age Of Ultron, she was able to cause Thor - a god - to see things that weren't really there, distracting him to the point that he became useless in battle. If she gets the opportunity to do the same to Thanos, the damage she could cause would be insane.
Mind games aside, Wanda has the power to manipulate objects without touching them, and could send literally anything flying Thanos' way, including huge rocks, explosives, knives, bullets - anything in her vicinity.
Hell, she might even be able to move Thanos himself (she lifted Cap in Civil War, so we know she can mess with organic matter) which would make him as helpless as a man with no arms trying to tie his shoes.
So why isn't Wanda ranked higher? She was able to push Vision - arguably the most powerful character in the MCU - down into the ground, after all.
Well, it's that old chestnut again - she's as vulnerable as a human. She doesn't have Cap's super-strength or Vision's durability; she can be shot, stabbed, punched, or kicked, fatally - and Thanos will definitely be aiming for the kill.